As the sequel to Anomaly Warzone Earth, Anomaly 2 adds new features to the single-player campaign and finally puts your skills to a test in a completely unique experience: the dynamic tower defense vs. tower offense multiplayer mode!

In the years following the invasion of Earth in 2018, the planet is overrun by alien machines. Humankind is on the verge of extinction. Banded together in huge convoys, they search the frozen tundra for food and supplies. Since the war, the roles have been reversed: now our species seems to be the Anomaly on a machine-controlled planet. Your convoy, Commander, is called Yukon.

Anomaly: Korea wasn't really a sequel to Anomaly: Warzone Earth, a "reverse tower-defense" game released in 2011 in which you maneuver tanks and convoys around a battlefield and direct them to blow away alien towers. (Lots of people loved it.)

This one really is a sequel. The folks at development studio 11 Bit have just announced Anomaly 2, out for PC, Mac, and Linux this spring for $15. Trailer's above.

Last year's Anomaly Warzone Earth flipped the tower defence genre on its head, putting you in the shoes of the guys trying to get past the powers, instead of the guys building them. It was, to keep things brief, brilliant.

It's now got a sequel. Anomaly Korea does the usual sequel thing: there's new units, new powers and a new tactical map. No word on a release date, but seeing as this is an iOS title, it's probably "soon".

Anomaly: Warzone Earth HD is the rare kind of iPad game that feels like it was improved by Apple's tablet.

I have not played this tactical war game—reverse tower defense, if you know or understand what the means—on a computer. So maybe I shouldn't be saying this. But I have played games like it, with game controller, with mouse and keyboard. They control fine but, usually, I just want to get my hands on the action like a good general standing over one of those table full of miniature units, shoving them around as he strategizes. On the iPad I can do that.

Anomaly HD, as a reverse tower defense game set in the streets of alien-invaded cities such as Baghdad. You a war commander looking down on a battlefield where tanks and trucks need to advance past enemy emplacements toward a goal. You start each map by purchasing a column of upgradeable armored units. You choose from rolling tanks and rocket launchers, shield generators and so on. You survey the map, a tangle of roads lined by turrets of different lethal types. You think, then draw the best route the armored column should take. Then you let them roll, repairing them on the fly, planting decoys, maybe diverting them under heavy fire onto sudden detours. You use money earned from both turret destruction and the picking up of roadside plunder to upgrade and add to that armored convoy that so desperately needs to reach the end.

The iPad is the perfect screen for the strategic action in Anomaly. The game feels like a natural on it. Some players may recoil from the significant challenge of even the game's middle difficulty level (so telling that it is labeled "advanced") but this is otherwise an iOS game to recommend with none of the caveats about compromised controls or play-it-on-the-supermarket-line simplicity of so many others on the App store. Consider this one of the best war games on Apple's machines.

Act now and take advantage of huge savings! Anomaly: Warzone Earth is available at 66% off during the Midweek Madness sale. Offer ends Thursday at 10am PDT.

Anomaly: Warzone Earth is mixture of action and strategy in a reversed tower defence formula. Choose the right squad and route as you battle your way through different alien tower defenses and attempt to recapture Earth.

We loved, lovedAnomaly Warzone Earth when it came to the PC. What's to stop us from loving this backwards tower defense game when it hits the iPad and iPhone?

Due out in the coming weeks, Anomaly Warzone Earth is an anomaly of a tower defense game. Instead of controlling the placement of towers, creating a meat-grinder tunnel of flame-belching, laser-pewing, machinegun-shooting turrets, you control the hapless ground units forced to trudge through the death alley.

Chillingo calls it a tower offense game, I think it's a genre that really needs to be explored much, much more on the iPhone and iPad.